[Ham-Computers] Is Smaller Really Larger?

[Duane Fischer, W8DBF]

Hello All,

I would greatly appreciate it if one of you would explain some object 
resolution puzzles to me. Some who are sighted, unlike myself, may benefit 
also. Thanks!

FYI: I was normally sighted until the eve of my eighteenth birthday when a 
careless Pheasant hunter shot me.

I have a printed document that measures 8W by 10H, portrait orientation. I 
scanned it at the default DPI of 150, quarter inch margins, both sides, top 
and bottom. It was scanned in color.  It was saved as a .jpg with no 
compression.

The image printed out fine. Correct margins, correct size.

I scanned the image a second time, but I increased the DPI to 300. I also 
used 5% compression.

This time the image was large enough that the last line of text was missing. 
It also pushed the margins out.

Here is where I am confused. When the number of dots in a given area 
increases, from 150 per inch to 300 per inch, the image quality, AKA 
resolution?, improves. Instead of making the image smaller, it made it 
larger. I thought that less dots per inch would make it larger with lower 
resolution, but it is working in reverse, or so it seems based on the 
description related to me.

What I want is a quarter inch border/margin, all the way around. The image 
should be 8X10. However, I can get along with a half inch border and smaller 
image. The image could be between 5X7 and 8X10, for instance.

I want the best detail I can get.

Since the image consists of four color photos and some text, I saved it as a 
.tif I also saved it as a .jpg for comparison.

The .tif is too large, for some reason.

How did I get the original image? My daughter used some version of Adobe and 
created it. She printed a copy with quarter inch margins. The file she gave 
me was the one Adobe writes with its own particular extension. Which fails 
to load into any software I have! Adobe I do not use for personal reasons.

Since I had the image on paper, I thought I could just scan it, size it to 
be an 8X10, save it to disc and print it. Which is exactly what I did. The 
problem arose when the higher resolution image did not fit the 8.5X11 paper 
I was using.

The scanned image at 150 DPI fit, but I thought I could improve the quality 
by doing what I have beeninstructed to do by those who know what they are 
doing when it comes to graphics. Namely, increase the DPI for scanning and 
the compress it down to fit.

Help!

What is the best way to get a good scan of this image and then print it on 
normal photo soft gloss paper stock of 8.5X11 without exceeding the margins 
and/or going off the page?

Duane W8DBF
dfischer at usol.com